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The number of students that don’t observe the key signature just amazes me! They keep ignoring the key signature, and wince every time they play a B instead of a Bb, but keep making the same mistake again and again...

The very highest level of sight playing is not only getting the notation correct, but also the rhythm, articulation, phrasing and expression. Every now and then you see a student who can do that, but it’s very rare. That’s the student who gets an A+.